21779040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 144

約数和(自身を含む): 73341072

約数和(自身を除く): 51562032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 157, 160, 170, 204, 240, 255, 272, 289, 314, 340, 408, 471, 480, 510, 544, 578, 628, 680, 785, 816, 867, 942, 1020, 1156, 1256, 1360, 1445, 1570, 1632, 1734, 1884, 2040, 2312, 2355, 2512, 2669, 2720, 2890, 3140, 3468, 3768, 4080, 4335, 4624, 4710, 5024, 5338, 5780, 6280, 6936, 7536, 8007, 8160, 8670, 9248, 9420, 10676, 11560, 12560, 13345, 13872, 15072, 16014, 17340, 18840, 21352, 23120, 25120, 26690, 27744, 32028, 34680, 37680, 40035, 42704, 45373, 46240, 53380, 64056, 69360, 75360, 80070, 85408, 90746, 106760, 128112, 136119, 138720, 160140, 181492, 213520, 226865, 256224, 272238, 320280, 362984, 427040, 453730, 544476, 640560, 680595, 725968, 907460, 1088952, 1281120, 1361190, 1451936, 1814920, 2177904, 2722380, 3629840, 4355808, 5444760, 7259680, 10889520, 21779040]

約数ペア:

[(1, 21779040), (2, 10889520), (3, 7259680), (4, 5444760), (5, 4355808), (6, 3629840), (8, 2722380), (10, 2177904), (12, 1814920), (15, 1451936), (16, 1361190), (17, 1281120), (20, 1088952), (24, 907460), (30, 725968), (32, 680595), (34, 640560), (40, 544476), (48, 453730), (51, 427040), (60, 362984), (68, 320280), (80, 272238), (85, 256224), (96, 226865), (102, 213520), (120, 181492), (136, 160140), (157, 138720), (160, 136119), (170, 128112), (204, 106760), (240, 90746), (255, 85408), (272, 80070), (289, 75360), (314, 69360), (340, 64056), (408, 53380), (471, 46240), (480, 45373), (510, 42704), (544, 40035), (578, 37680), (628, 34680), (680, 32028), (785, 27744), (816, 26690), (867, 25120), (942, 23120), (1020, 21352), (1156, 18840), (1256, 17340), (1360, 16014), (1445, 15072), (1570, 13872), (1632, 13345), (1734, 12560), (1884, 11560), (2040, 10676), (2312, 9420), (2355, 9248), (2512, 8670), (2669, 8160), (2720, 8007), (2890, 7536), (3140, 6936), (3468, 6280), (3768, 5780), (4080, 5338), (4335, 5024), (4624, 4710)]